Device for automatic distribution of a limited electrical effect or current intensity between lamps, &amp;c.



0 BRAGSTAE DEVICE FOR AUTOMATIC DISTRS BUTIGN OF A LWH'ED ELECTRICAL EFFECT 08 CURRENT INTENSITY BETWEEN LAMPS, 6w.

APPLICATHL N FILED APR. 13, I916 Patented Apr. 23,1918.

spal e eflect or cement evaiiahle at any time nis megs his 3T0 all wiwm z't may concern:

electliicalefl'ect or current stoves or the like should in turn '50" current which thesubscriber is Be it known that I, ()Lebivnni' BRAF a sulnect of the King of ilorwey at Trondhjene. Norway, have hav tain new and useful 1m rovezn vices for automatic distri ution oi limited intensit between lamps and similar devices iiehle cut endv out; according to the meme 2;! denand anddevices capable of ehserbinl the such as cookin andheating apparatus ens" thelike; and do hereby declare the fob lowing to be a full, clear, and exact desci tion of'the invention, such 7 others skilled inthe art-to which teins to make end use the some, i being had to the accompanying Cir and'to letters or figures of reference merited thereon, which i'orzn e pert of this specifics.- ition. I N In purchasing electricei ei'iei gy is}; mum meter it is of essential importance to be able to utilize the'energy throughout consecutive hours and throughout the Iii the. energy is used for o L isnot possible es the demand for l restricted to "some shorter periods 0 or the 'year. A better utiliieei teined by using the electrical energ also for other purposes, for instance, coo heating, asthese uses can partly take place at,-,any,hours of the dey and consequent when there is 110' demand for l lt 'Here the difiicul-ty turns howev isflnecessary to cut in the eleetiic electrical hot Water lamps are cut out.

The object of the present render these switchinss an 7 such consumption alZ-PMfitRS-EZS or less independent of l stoves, hot Water receptacles or the i, out in automatically in proportion as other consumption devices which are degeendent onthe time for instance electrical lamps are cut out. When the letter consumption epparatus are cut in, the hot Wittfii. reeept etc matically cut out so as to rendet rent consumption of the subscriber cally constant throughout the es consect hours and, possiloiy equal to the Specification of Letters s s. J3 ii nnsnci' "on Patented Apr; 23,1918.

Application filed April 1?, 1813. Serial Ho. 932K321 ously .ZROWX17 which however do :not

" Work sstisisctori among the same my be mentioned on a L gement comprising an counted before the heating and ces end acting at the same time t limiter so as to connect thecon- 7L "ally by means of an electi'ornug'i 5 main circuit When the chi e of the letter sinks below a; preed amount and to once more auto-- 1 isticali disconnect the same, es soon asthis amount is exceeded or attained.

his arrangement comprises" only one auint xugater and does not consellGW o1 GSLfibhSi i1I1g elconstant cooking ai s-1eeretus except when the to the effect eh FDBd by theheetapparatus .mnown arrangement inch the heating and cooking ed 1n e plurellty oflcntcults Wiii inversely set to successively cut in the various Cilf; nts into the heetingedevices.

This a neeessitetes 'the use of "e are interrupter-s,

mt one by one, the re ent currents;

the heating and.

, livided in onected in parallel inning devices in b out or in, The invention differs hon 355mm the latter known er rengexnent 1 that "the cutting in and out always takes pieces by constant charge of the plant as is "operated by one andthe he plant nor of using the heet-i ,ve been out out in a number correoi the nveiieble energy y cut n or out or: contact ampere Ineteir by the interrupters and engagingl gram showing the principle of the invention and Fig. 2 a modified embodiment of same.

S is a current coil through which flows the total current consumed by the subscriber. B are the current consuming devices which may be cut in or out by the subscriber according to the requirements, such as lamps. B are the current consuming devices which are capable of absorbing the spare energy available at any time such as stoves or hot water receptacles. The latter apparatus are divided in a greater or less number of circuits connected in parallel and leading to an automatic switch A. The latter is operated by an auxiliary current which is cut in and out by the movements performed by the magnet M when actuated by-the current coils S.

The above apparatus is designed for alternating current. lVhen the current in the coil S attains its maximum amount the mag net N will be attracted and contact established at K whereby the auxiliary current will flw through the coil around the electro-magnet E the metal vdisk N will be put in rotation and the pin T carried by the same will be shifted in the direction of the arrow so as to open the interrupters b 6 whereby the current in the coil S will be reduced. When the current has diminished to such extent as to open the contact K the movement of the disk will be stopped. If on the contrary the current in the coil S decreases to a certain extent below its maximum amount, contact will be made at K and the auxiliary current will flow around the electromagnet E whereby the metal disk N and the pin T will be turned in the opposite direction of the arrow and the interrupters 6 6 etc., will be cut in until the current in the coil S becomes once more strong enough to open the contact at K. p

In order to prevent the interrupters b 6 etc., from being left in an intermediate position and to be burnt by the arcs which would thereby arise, they may be executed as moment interrupters. According to Fig. 1 this is obtained by making the fora carried the pin T so wlde as to provide for a su cient play between the pin and the interrupter. The pin will, thereby be shifted by the interrupter a certain distance only ahead and the remaining movement be provided for as indicated in Fig. 1, by a spiral spring connected with the interrupter.

Fig. 1 shows only a single disk N subof the electromagnet E and E and carrying the pin T.

It is however also practicable to use two diflerent disks connected with each other by means of the like so as power on the pin T. If the apparatus is a gearing a worm wheel and to obtain a greater amount of "controlled by auxiliary to be designed for continuous current; the pin T will have to be actuated by a c0ntinuous current motor adapted to be so reversed by means of a magnet actuated by the coil S as to move the pin in one or the other direction according to whether the current in the coil S is in excess or insufiicient.

The current coil S with the movable magnet M and the two contacts K K may be denominated, in analogy with the term contact volt meter, a contact ampere meter. With alternating current course be connected with the main circuit by means of a current transformer and with continuous current by means of a shunt.

Instead of actin r as shown in Fig. 1 to close the circuit or the electro-magnets E E which actuate the automatic interrupters, the contact-ampere meter ma also act to close the circuit of a relay a apted in its turn to cut in the current for the magnet oi the relay and K and K are the contacts for the contact ampere meter.

Instead of using a contact ampere meter, as shown in Figs. 1 and 2 it is also practicable to use a contact watt meter. The latter may be executed either on the dynamometric principle or on the induction principle in analogy with the so called Ferraris watt meter.

or the contact ampere meter may accordingly be substituted an contact instrument for constant current gi olt ampere) or constant effect.

According to Fig. 1 the automatic controller A is adapted to cut in and out directly thesources of consumption indicated with B the working currents passing the switches of the automatic controller.

With larger amounts of energy such direct action is less practical it being preferred to provide an indirect cutting in and out of the current consuming devices B by means of electrically operated switches in the several parts of the currents of said apparatus.

The auxiliary currents for said electrically operated switches are cut in and out by means of the controller A.

Claims:

1. An electrical system comprising a supply circuit having a variable lighting portion and a portion having a pluralit of heatin devices, an electromagnetical y operate contact device having an actuating coil in series with said circuit, a reversely rotatable motor for successively increasing or decreasing the rate of energy supply to said heating portion in inverse proportion to the variation of load in the lighting portion current through said contact device, and a plurality of the same may of 

